Hello.
I have EDC17C64 on hands.
Turbo has increased(Hybrid)
It is DSG(DQ250).
I have Boost problems when changing gears(1->2,2->3,3->4)
After shifting, the pressure will drop below 2.0 bar abs., and then it will climb slowly (such as the attached LOG)

who can Help me ?

All your turbo maps is tuned bad in your file. You don't know how boost control works in this ECU.